change Dockerfile to accept the jar file from the target dir (previous pipeline stage)

# ---------- Stage 1: Build ----------

FROM maven:3.9-eclipse-temurin-17 AS builder

WORKDIR /app

# Copy pom.xml and download dependencies first (cache layer)

COPY pom.xml .

RUN mvn dependency:go-offline -B

# Copy the rest of the source code

COPY src ./src

# Build the Spring Boot executable JAR

RUN mvn clean package -DskipTests

# ---------- Stage 2: Runtime ----------

FROM eclipse-temurin:17-jre-alpine

MAINTAINER osl.etsi.org

# Create application directory

RUN mkdir -p /opt/openslice/lib/

# Copy the built JAR from the builder stage

COPY --from=builder /app/target/org.etsi.osl.mcp.backend-0.0.1-SNAPSHOT.jar /opt/openslice/lib/app.jar

# Copy the built JAR from a previous pipeline

COPY /target/org.etsi.osl.mcp.backend-1.0.0-SNAPSHOT.jar /opt/openslice/lib

# Expose port

EXPOSE 11880

    CMD wget --no-verbose --tries=1 --spider http://localhost:11880/actuator/health || exit 1

# Run application

CMD ["java", "-jar", "/opt/openslice/lib/app.jar"]

CMD ["java", "-jar", "/opt/openslice/lib/org.etsi.osl.mcp.backend-1.0.0-SNAPSHOT.jar"]